This specification covers an acrylonitrile-butadiene (NBR) rubber in the form of molded rings, compression seals, molded O-ring cord, and molded-in-place gaskets for aeronautical and aerospace applications. For sheet, strip, tubing, extrusions, and molded shapes, refer to the AMS3215 specification, which is intended for that use.
SAE AMS7270M-2022 history
2022SAE AMS7270M-2022 Rubber: Acrylonitrile-Butadiene (NBR) Fuel Resistant 65 to 75 Type A Hardness for Seals in Fuel